With a clean and elegant appearance, sliding doors improve the lighting and ventilation of a space.

They also provide several advantages when it comes to design: they frame stunning views and emphasize nature. On the other hand, when using them as an enclosure it is possible to generate a greater fluidity between the interior and exterior spaces, creating an illusion of a larger space.

If you are looking for ideas on how to incorporate sliding doors into your project, keep reading on for 23 impressive examples.

This week, we present a selection of 11 of the best images of rooftop spaces. These spaces, usually terraces conceived for the enjoyment of views and fresh air, can often be the most important element of a design. Some of these rooftops surprise us with wonderful gardens, others with impressive pools, and others even with fun games for children. Below is a selection of images from prominent photographers such as Nico Arellano, Hiroyuki Oki, and Amit Geron.

This August 19th is World Photo Day, which celebrates photography on the anniversary of the day on which France bought the patent for the daguerreotype, one of the earliest photographic processes, and released it to the world for free in 1839. At ArchDaily, we understand the importance of photography in architecture—not only as a tool for recording designs, but also as a discipline that many of us enjoy. To celebrate the occasion, we decided to reveal the most popular images ever published on ArchDaily, as selected by you, our readers. Using data gathered from My ArchDaily, we have ranked the 100 most-saved images from our database; read on to see them.